Hybrid tea rose plant named `Light Carola`

ABSTRACT

A new and distinct rose plant of the hybrid tea class named `Light Carola`. The plant is characterized by vigorous growth, non-fragrant flowers with red (RHS 47 A - 57 B) petals, early and prolific flower production, and fast and good propagating features.

CROSS REFERENCE TO RELATED PATENTS

The new and distinct cultivar described and illustrated herein is related to the cultivar `Carola`, the subject of U.S. Plant Pat. No. 8,290, issued Jul. 6, 1993, which in turn is a mutation of `Deladel` (`Mme. G. Delbard`), the subject of U.S. Plant Pat. No. 4,391, issued Mar. 6, 1979.

FIELD OF THE INVENTION

The present invention is concerned with a new variety of a Hybrid Tea rose discovered by me and being a mutation of `Carola`, U.S. Plant Pat. No. 8,290, issued Jul. 6, 1993.

BACKGROUND OF THE INVENTION

This mutation was discovered as a branch on a `Carola` plant in 1993 on a cultivated area in a farm, located in Moshav Ha'yogev, located in Izra'el Valley, Israel, with an average night temperature of 25° C. in summer and 0°-5° C. in winter.

The branch was vegetatively propagated from cuttings by self-rooting. From these cuttings plants were grown in a greenhouse where they were further vegetatively propagated from cuttings by self-rooting.

The resulting plants were found to be stable in their botanical characteristics, as are described below and as illustrated by typical plants parts in the attached photographs.

Asexual propagation of this new variety was performed at Moshav Ha'yogev, Israel.

The presently claimed cultivar was a natural mutation of the cultivar `Carola`.

All color definitions in this application are taken from The Royal Horticultural Society of London, England (R.H.S.), Colour Chart.

The data in the following table of comparison is based on observations made in the greenhouse at Moshav Ha'yogev, where plants were grown side-by-side, under the same conditions and under the same roof. The following observations were made between the present invention and the parent plant.

    ______________________________________                                         Prickle(s): `CAROLA`      `LIGHT CAROLA`                                       ______________________________________                                         shape: upper side                                                                          concave to    straight                                                         straight                                                           Leaf:                                                                          size (mm):                                                                     length      140-170       140-160                                              width       110-150       100-130                                              Petiole:                                                                       length (mm) ca. 20        20-25                                                Foliage:                                                                       young: color of                                                                            RHS 144B      RHS 141B                                             upper side  yellow-green  light green                                          mature: color of                                                                           red-green     green                                                lower side                                                                     Flowering stem:                                                                length (cm) 70-80         60-80                                                color       medium green  green                                                Flower:                                                                        diameter (mm)                                                                              ca. 110       ca. 100                                              number of petals                                                                           33-40         28-39                                                Sepal:                                                                         length (mm) 40-55         35-48                                                Petal:                                                                         size (mm):                                                                     length      50-60         40-60                                                width       55-65         40-50                                                color of upper side                                                                        RHS 53A dark red                                                                             RHS 47A/57B red                                      color of basal spot                                                                        RHS 155D white                                                                               RHS 155A white                                       color of lower side                                                                        RHS 53C dark red                                                                             RHS 52A red                                          ______________________________________                                    

SUMMARY OF THE INVENTION

The present invention provides a Hybrid Tea rose variety which includes the following characteristics which distinguish the new variety from the cultivar `Carola`, to which it is related, and for which the following differences have been noted:

Distinctly different in the following:

Prickles: Shape of upper side.

Leaf: Size.

Petiole: Length.

Foliage: Color.

Flower: Diameter, number of petals.

Sepal: Length.

Petal: Size, color, color of basal spot.

The relationship of the presently claimed cultivar to other related cultivars as follows: ##STR1##

The following table of comparison present the differences between the cultivars in the family:

    ______________________________________                                         U.S. Plant                        `LIGHT `SEE-                                 Patent/ `DELA-    `CARO-          CARO-  MORE`                                 Applica-                                                                               DEL`      LA`      `ODEM` LA` 08/                                                                               08/                                   tion    4,391     8,290    8,620  323,076                                                                               322,487                               ______________________________________                                         Plant:                                                                         growth  upright   upright  semi-  upright                                                                               semi-                                 habit                      upright       upright                               Stem:                                                                          color:  green-    corky    green- green- green-                                mature  brown,             brown  brown, brown                                         corky              corky                                               Young             strong   medium strong medium                                shoot:                     to            to                                    antho-                     strong        strong                                cyanin                                                                         coloration                                                                     hue of  no data   red-     purple red-   red-                                  antho-            brown           brown  brown                                 cyanin                                                                         coloration                                                                     Prick-                                                                         le (s):                                                                        size:                                                                          length  no data   5        5      4.5    5                                     (mm)                                                                           height  no data   6        6      5.5    6                                     (mm)                                                                           shape:  long base concave  concave                                                                               straight                                                                              concave                               upper   hooked    to                     to                                    side    downward  straight               straight                              short                                                                          prick-                                                                         les:                                                                           quantity                                                                               many      58       none   59     none                                  per 10 cm                                                                      at center                                                                      of stem                                                                        long                                                                           prick-                                                                         les:                                                                           quantity                                                                               many      8        7      9      8                                     per 10 cm                                                                      at center                                                                      of stem                                                                        Leaf:                                                                          size:                                                                          length  no data   140-170  120-150                                                                               140-160                                                                               120-150                               (mm)                                                                           width   no data   110-150  75-115 100-130                                                                               75-115                                (mm)                                                                           green   no data   medium   medium medium medium                                color             to dark         to dark                                      glossiness                                                                             no data   absent   weak   absent weak                                  of upper          to very         to very                                      side              weak            weak                                         Leaflet:                                                                       cross   oval      slightly straight                                                                              slightly                                                                              straight                              section pointed   convex          convex                                               often                                                                          curved                                                                         with                                                                           convex                                                                         upper                                                                          surface                                                                undulation                                                                             no data   absent   weak   absent weak                                  of margin         to very  to     to very                                                                               to                                                      weak     medium weak   medium                                Terminal                                                                       leaflet:                                                                       width:  no data   ca. 35   30-43  ca. 33-38                                                                             30-43                                 (mm)                                                                           blade:  no data   ca. 60   50-65  ca. 60 50-65                                 length                                                                         (mm)                                                                           Petiole:                                                                       length  color:    ca. 20   15-20  ca. 20-25                                                                             15-20                                 (mm)    green     hairy    smooth smooth hairy                                 rachis                                                                         Foliage:                                                                       young:  light     144B     145B   141B   141B                                  color   brown     yellow-  yellow-                                                                               light  light                                 of upper          green    green  green  green                                 side (RHS)                                                                     mature: green     red-     red-   green  green                                 color of          green    green                                               lower side                                                                     Flowering                                                                      stem:                                                                          length  70-90     70-80    40-60  60-80  40-70                                 (cm)                                                                           color   no data   medium   green  green  light                                                   green                  green                                 Flower                                                                         pedicel:                                                                       number of                                                                              no data   few      very   few    very                                  hairs or                   few to        few to                                prickles                   few           few                                   Flower                                                                         bud:                                                                           longi-  pointed   circular ovoid  circular                                                                              ovoid                                 tudinal ovoid                                                                  section                                                                        Flower:                                                                        diameter                                                                               average   ca. 110  ca. 80 ca. 100                                                                               ca. 80                                (mm)    102-114                                                                size of no data   large    medium large  medium                                bloom                                                                          height  no data   50-70    30-50  50-70  30-50                                 (mm)                                                                           fading  none to   none     slight none   fading                                with age                                                                               end of             fading        begins                                        third day          begins        after                                                            after         7-10                                                             7-10          days                                                             days                                                view from                                                                              rounded   rounded  rounded                                                                               rounded                                                                               rounded                               above             to star         to star                                                        shaped          shaped                                       number of                                                                              30-35     33-40    40-43  28-39  43-58                                 petals                                                                         life (days):                                                                           no data   20-30    15-20  20-30  17-21                                 on the                                                                         plant                                                                          in a vase                                                                              no data   12-15    15-18  12-15  12-15                                 Sepal:                                                                         length  no data   40-55    30-43  35-48  30-43                                 (mm)                                                                           extensions                                                                             slight    strong   medium strong medium                                Petal:                                                                         size:                                                                          length  no data   50-60    37-45  40-60  37-45                                 (mm)                                                                           width   no data   55-65    39-49  40-50  39-49                                 (mm)                                                                           upper   Blood     RHS 53A  RHS    RHS    RHS                                   side:   red       dark     46AB   47A/57B                                                                               57A/58B                               color             red      dark red                                                                              red    purple                                                           Currant       red                                                              red                                                 basal spot                                                                             very      medium   small  medium small                                 at base of                                                                             small                                                                  petal: size                                                                    color   yellow    RHS      RHS 3B RHS    RHS 3B                                                  155C     yellow 155A   yellow                                                  white           white                                        lower   Blood     RHS 53C  RHS 52A                                                                               RHS 52A                                                                               RHS 55D                               side:   red       dark     deep   red    whitish-                              color             red      red           purple,                                                          Crimson       very light                                                                     purple                                reflexing                                                                              strong    strong   medium strong medium                                of margin                                                                      undulation                                                                             no data   weak     very   weak   very                                  of margin                  weak to       weak to                                                          weak          weak                                  Stamen: yellow    purple   orange-                                                                               purple yellow-                               predominant                red           orange                                color of                                                                       filament                                                                       Style:                                                                         hairiness of                                                                           no data   medium   absent medium absent                                upper half                                                                     Stigma:                                                                        position as                                                                            no data   above    same   above  above                                 compared with              level                                               anthers                                                                        color   Amber     RHS 4C   RHS    RHS 4C RHS 4D                                        yellow    light    155C   light  light                                                   yellow   white  yellow yellow                                Seed                                                                           Vessel:                                                                        size:   no data   medium   small  medium small                                 length  no data   11       8      11     8                                     (mm)                                                                           diameter                                                                               no data   12       11     12     7                                     (mm)                                                                           shape of                                                                               no data   pitcher  funnel pitcher                                                                               funnel                                longitudinal      shaped   shaped shaped shaped                                section                                                                        Anthers:                                                                       color   yellow    red      yellow red    light                                                                          yellow                                Filament:                                                                      color   yellow-   yellow-  pink   yellow-                                                                               yellow                                        red       red      margin:                                                                               red                                                                     orange                                              ______________________________________                                    

BRIEF DESCRIPTION OF THE DRAWINGS

Sheet 1 represents a typical specimen of the present invention, illustrating a flower bud at picking stage, a part of the stem, leaflets, and flowers at various opening stages;

Sheet 2 represents a side-by-side comparison of the flower size, bud size and color of petal between a typical specimen of the present invention, `Light Carola` (on the left) and the parent variety, `Carola` (on the right); and

Sheet 3 represents another side-by-side comparison of various flower parts between a typical specimen of the present invention, `Light Carola` (on the left) and the parent variety, `Carola` (on the right).

The colors in the drawings are as true as is reasonably possible in an illustration, depicting green and red colors. The plants illustrated in Sheets 2 and 3 were grown under exactly the same conditions, in a greenhouse at Moshav Ha'yogev, each on its own roots, and being visibly healthy.

BOTANICAL DESCRIPTION

The following observations were made in Moshav Ha'yogev Israel in 1993 in a greenhouse:

Plant:

Form.--Bush.

Growth habit.--Upright.

Height (cm).--150-200.

Spread (cm).--Ca. 80.

Wood:

Color.--Mature, Light brown.

Bark.--Color: young, Green.

Mature, Light brown.

Stem:

Color.--Young, R.H.S. 143 B/152 B, green-yellow green. Mature, RHS 143 A green.

Young shoot:

Anthocyanin coloration.--Strong.

Hue of anthocyanin coloration.--Red-brown.

Prickle(s): Present.

Size.--Length (mm): ca. 4.5. Height (mm): ca. 5.5.

Shape.--Upper side: straight. Lower side: concave.

Color.--Young: Bases: R.H.S. 173 B grey orange. upper part: R.H.S. 144 B yellow green. Mature: bases: R.H.S. 173 A/176 grey orange. upper part: R.H.S. 152 BC yellow green.

Short prickles:

Quantity.--Many.

Number per 10 cm at center of stem.--Many (59).

Long prickles:

Number per 10 cm at center of stem.--Few (9).

Leaf:

Size.--Length (mm): 140-160. Width (mm): 100-130.

Green color.--Medium to dark.

Glossiness of upper side.--Absent to very weak.

Number of leaflets in the compound leaf.--3, 5, or 7.

Leaflet:

Cross section.--Slightly convex.

Undulation of margin.--Absent to very weak.

Margin.--Serrated.

Terminal leaflet:

Length of blade (mm).--Ca. 60.

Maximum width (mm).--Ca. 33-38.

Shape of base.--Rounded.

Petiole:

Length (mm).--Ca. 20-25.

Rachis.--Straight, flat, smooth.

Color.--R.H.S. 144 A, yellow green.

Foliage:

Color.--Young: upper side: R.H.S. 165 A, grey orange. Lower side: R.H.S. 178 A/183 B, grey-red purple. Mature: upper side: R.H.S. 137 A/147 A, green-yellow green. Lower side: R.H.S. 137 C/147 B, green-yellow green.

Stipule: Stitched, split tip.

Bloom:

Borne.--Multiply/in a Cluster.

Flowering shoot:

Number of flowers (after the other flower buds are pinched off).--Few (3-5).

Flowering habit: Continuous.

Flowering stem:

Length (mm).--Ca. 60-80.

Color.--Green.

Flower pedicel:

Number of hairs or prickles.--Few.

Flower bud:

Longitudinal section.--Circular.

Size.--Large (50-70 mm).

Flower:

Type.--Double.

Diameter.--Ca. 100 mm.

Fragrance.--None.

View from above.--Rounded to starshaped.

Side view.--Upper side: Flattened-convex. Lower side: flat.

Number of petals.--28-39.

Life.--on the plant: 20-23 days. In a vase: 12-15 days.

Fading with age.--None.

Petal:

Size.--Length (mm): ca. 60-40.

Width (mm): ca. 40-50.

Shape.--Rounded.

Color.--upper side.--Middle zone: R.H.S. 47A/57B red. Marginal zone: R.H.S. 47A/57B red. Basal spot: present. Basal spot: size: medium. color: R.H.S. 155A white.

Color.--lower side.--Middle zone: R.H.S. 52A red. Marginal zone: R.H.S. 52A red. Basal spot: present. Basal spot: color: white.

Reflexing of margin.--Strong.

Undulation of margin.--Weak.

Sepal:

Color.--Upper side: R.H.S. 144 AB, yellow green. Lower side: R.H.S. 144 A, yellow green.

Length (mm).--Ca. 35-48.

Extensions.--Strong.

Color.--Upper side: green-yellow, white hairs. Lower side: green-yellow.

Stamen:

Predominant color of filament.--Purple.

Style:

Length.--Long.

Predominant color.--Purple.

Hairiness of upper half.--Medium.

Stigma:

Position as compared wtih anthers.--Above.

Color.--R.H.S. 4C light yellow.

Seed vessel:

Size.--medium.

Length (mm).--Ca. 11.

Diameter (mm).--Ca. 12.

Shape of longitudinal section.--Pitcher shaped.

Color.--White-yellow.

Description.--Long, hairy.

Pollen:

Color.--Red-yellow.

Anthers:

Color.--Red.

Quantity.--Many.

Arrangement.--Peripheral.

Filament:

Color.--Yellow-red.

Time from planting to beginning of flowering: Approx. 4 months.

Self-rooting: Very good.

The cultivar is intended as and is suitable as a greenhouse rose. The cultivar bears blooms multiply. Blooms may be borne in a cluster.

When reference is made herein to "Number of flowers few," it is understood that such refers to 3, 4 or 5 flowers per cluster (i.e., the flowers that are left on the flowering shoot after the other flowers were pruned off). In addition, the term "fast" represents: within one month from insertion (of the cutting into the bedding) to a commercial plant. The term "good" represents: about 60-70% success in propagation. 

I claim:
 1. A new and distinct rose plant of the hybrid tea class named `Light Carola` as shown and described; said plant being characterized by vigorous growth, non-fragrant flowers with red (R.H.S. 47 A-57 B) petals, early and prolific flower production, and fast and good propagating features. 